use persistent connection to grab data - php

Question

Hi all i am grabbing around 1.3k of record from Steam's database and I am wondering how I can speed up my script.
Currently I use file_get_contents on their API url in a loop for each app's ID (so this is sending 1.3k requests which as you can imagine is painfully slow).
Is there a better way? We used to lump all the app's id's together, but they have removed that ability it seems we have to do it one at a time now, and it's not good.
This is my code showing the loop:
foreach($Chunks as $Game)
{
if ($Game['bundle'] == 0)
{
$Subs_URL = 'http://store.steampowered.com/api/packagedetails/?packageids=' . $Game['steam_appid'] .
'&cc=' . $cc . '&filters=basic,price_overview';
if ($JSON = file_get_contents($Subs_URL))
{
$DecodedJson = json_decode($JSON,true);
foreach($Chunks as $Chunk)
{
if (!isset($DecodedJson[$Chunk['steam_appid']]['data']['steam_appid']))
{
$DecodedJson[$Chunk['steam_appid']]['data']['steam_appid'] = $Chunk['steam_appid'];
}
}
//echo '<pre>';
//print_r($DecodedJson);
//print_r(array_keys($DecodedJson));
$GameList = array_merge($GameList,$DecodedJson);
}
else
{
die("Steam API timed out!");
}
}
Here's an example of what $Chunks is:
array(1358) {
[0]=>
array(4) {
["steam_appid"]=>
string(6) "227580"
["name"]=>
string(10) "10,000,000"
["dlc"]=>
string(1) "0"
["bundle"]=>
string(1) "0"
}
[1]=>
array(4) {
["steam_appid"]=>
string(6) "206712"
["name"]=>
string(21) "Cities in Motion: Ulm"
["dlc"]=>
string(1) "1"
["bundle"]=>
string(1) "0"
}
[2]=>
array(4) {
["steam_appid"]=>
string(6) "259620"
["name"]=>
string(24) "3079 -- Block Action RPG"
["dlc"]=>
string(1) "0"
["bundle"]=>
string(1) "0"
}